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Dog Hair Extracts

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Photo of a dog on a hill in a breeze. Ultrafiltered Dog written to the right.

Accuracy That Drives Relief

Are your patients still struggling with the distressing symptoms of dog allergies, even after undergoing treatment? The use of lower-concentration extracts can result in false negatives, leaving patients without the much-needed relief from their dog allergies.1 HollisterStier Allergy’s Ultrafiltered (UF) Dog extract provides solutions for your clinic and your patients.

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Dog Extract

Why Choose Our Ultrafiltered Dog Hair & Dander Extract?

  • Better Detection, Optimal Formulation: Our UF Dog extract contains higher levels of Can f 1 compared to conventional 1:20w/v dog extracts, supporting reliable testing and efficacious treatment.1
  • Identify More Allergic Patients: When choosing an extract for skin prick testing, the Diagnostic Practice Parameter recommends using the highest concentration available.2,3 Recent studies suggest UF Dog produces more skin test positive reactions with a higher sensitivity for detecting more allergic patients than other dog extracts.4
  • Target an Optimal Dose: UF Dog’s higher concentration achieves the Immunotherapy Practice Parameter target maintenance dose of 15ug of Can f 1.4

By choosing Ultrafiltered Dog Hair & Dander extract, you’re choosing recommended concentrations and reliable results.1 Provide your patients with the relief they deserve.

Formulation Flexibility with UF Dog

Preparing formulations with UF Dog offers specific advantages for your practice and your patients.

 

  • Achieve an optimal dose with a typical injection volume2
  • Avoid higher glycerin concentrations, which can be painful upon injection5
  • Combine allergens into fewer vials so patients require fewer injections per visit

Switching is Simple

  1. Identify patients who tolerate their injections well and those with a complicated health history.
2. Determine an appropriate dose adjustment to account for potency difference and patient’s prior response to treatment.
3. Advance the patient to their target maintenance dose and monitor for tolerance.

Related Products

ComforTen

Skin Test Devices

Cat Hair

Cat Hair and Pelt Extracts

Histamine

Histamine

Request Resources

Ultrafiltered Dog Hair and Dander Transition Guide

Ultrafiltered Dog Hair and Dander One-Sheet

Dog Allergies

Dog Allergies Tear-Off

Ultrafiltered Dog Hair and Dander Transition Guide

Phenol-Free Extracts Informational Sheet

1J.C. Turbeyville, M. Nelson, C. Mikita. Discordance Between Conventional and Acetone Precipitated (AP) Dog Extract in Skin Prick Testing. The Journal of Allergy and Clinical Immunology, Volume 121, Issue 2 (2008). DOI: https://doi.org/10.1016/j.jaci.2007.12.234

2Brown, Shannon, and Melissa Austin. “Characterization of commercial dog allergen extracts, including new ultrafiltered dog extract.” Annals of Allergy, Asthma & Immunology 129.5 (2022): S22

3Cox ET AL. Allergen Immunotherapy: A practice parameter third update. The Journal of Allergy and Clinical Immunology, January 2011. DOI: 10.1016/j.jaci.2010.09.034

4Bernstein, I. Leonard, et al. “Allergy diagnostic testing: an updated practice parameter.” Annals of Allergy, Asthma & Immunology 100.3 (2008): S1-S148

5Penrice, Alexander, et al. “Varying Skin Prick Test Reactivity Frequencies across Dog Epithelium, Acetone Precipitated Dog and Dog Ultrafiltered Extracts.” Journal of Allergy and Clinical Immunology 155.2 (2025): AB288

6Van Metre Jr, Thomas E., et al. “Pain and dermal reaction caused by injected glycerin in immunotherapy solutions.” Journal of Allergy and Clinical Immunology 97.5 (1996): 1033-1039.